package com.example.experiment3.web.client;

import com.example.experiment3.model.domain.Article;
import com.example.experiment3.model.domain.Comment;
import com.example.experiment3.service.IArticleService;
import com.example.experiment3.service.ICommentService;
import com.example.experiment3.service.ISiteService;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import java.util.List;


@Controller
public class IndexController {
    private static final Logger logger = LoggerFactory.getLogger(IndexController.class);
    @Autowired
    private IArticleService articleServiceImpl;
    @Autowired
    private ICommentService commentServiceImpl;
    @Autowired
    private ISiteService siteServiceImpl;
    //博客首页，会自动调转到文章业
    @GetMapping(value = "/")
    private String index(HttpServletRequest request){
        return this.index(request,1,5);
    }
    @GetMapping(value = "/page/{p}")
    public String index(HttpServletRequest request, @PathVariable("p") int page,
                        @RequestParam(value = "count",defaultValue = "5") int count){
        PageInfo<Article> articles = articleServiceImpl.selectArticleWithPage(page, count);
//获取文章热度统计信息
        List<Article> articleList = articleServiceImpl.getHeatArticles();
        request.setAttribute("articles",articles);
        request.setAttribute("articleList",articleList);
        logger.info("分页获取文章信息：页码 "+page+"，条数 "+count);
        return "client/index";
    }

    //    文章详情查询
    @GetMapping(value = "/article/{id}")
    public String getArticleById(@PathVariable("id") Integer id,HttpServletRequest request){
        Article article = articleServiceImpl.selectArticleWithId(id);
        if (article != null){
//            查询封装评论相关数据
            getArticleComments(request,article);
//            更新文章点击量
            siteServiceImpl.updateStatistics(article);
            request.setAttribute("article",article);
            return "client/articleDetails";
        }else {
            logger.warn("查询文章详情结果为空，查询文章id："+id);
//            未找到对应文章页面，跳转到提示页
            return "comm/error_404";
        }
    }

    private void getArticleComments(HttpServletRequest request, Article article) {
        if (article.getAllowComment()){
//            cp表示评论页码，commentPage
            String cp = request.getParameter("cp");
            cp = StringUtils.isBlank(cp)? "1" : cp;
            request.setAttribute("cp",cp);
            PageInfo<Comment> comments = commentServiceImpl.getComments(article.getId(), Integer.parseInt(cp), 3);
            request.setAttribute("cp",cp);
            request.setAttribute("comments",comments);
        }
    }
}

